How To Read a File From Your Application Bundle

http://iphoneincubator.com/blog/data-management/how-to-read-a-file-from-your-application-bundle

First you need to add your file to the Resources folder of your Xcode project. Then you can access the file like this (assuming the file is called MyFile.txt):

view plaincopy to clipboardprint?

1. NSString *filePath = [[NSBundle mainBundle] pathForResource:@"MyFile" ofType:@"txt"];  
2. NSData *myData = [NSData dataWithContentsOfFile:filePath];  
3. if (myData) {  
4.     // do something useful  
5. }  

NSString *filePath = [[NSBundle mainBundle] pathForResource:@"MyFile" ofType:@"txt"];
NSData *myData = [NSData dataWithContentsOfFile:filePath];
if (myData) {
 // do something useful
}

Here’s a complete example reading a help text file into a UIWebView.

view plaincopy to clipboardprint?

1. NSString *filePath = [[NSBundle mainBundle] pathForResource:@"HelpDoc" ofType:@"htm"];  
2. NSData *htmlData = [NSData dataWithContentsOfFile:filePath];  
3. if (htmlData) {  
4.     [webView loadData:htmlData MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:[NSURL URLWithString:@"http://iphoneincubator.com"]];  
5. }  

NSString *filePath = [[NSBundle mainBundle] pathForResource:@"HelpDoc" ofType:@"htm"];
NSData *htmlData = [NSData dataWithContentsOfFile:filePath];
if (htmlData) {
 [webView loadData:htmlData MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:[NSURL URLWithString:@"http://iphoneincubator.com"]];
}

If you want to read the file into a string, which you can then display in a UITextView, for example, then do this:

view plaincopy to clipboardprint?

1. NSString *filePath = [[NSBundle mainBundle] pathForResource:@"important" ofType:@"txt"];  
2. if (filePath) {  
3.     NSString *myText = [NSString stringWithContentsOfFile:filePath];  
4.     if (myText) {  
5.         textView.text= myText;  
6.     }  
7. }